Integral fresh air dehumidifier with pre-cooling water disc and control method thereof

Abstract

The invention relates to an integral fresh air dehumidifier with a pre-cooling water disc and a control method thereof. The dehumidifier comprises an air flow path, a refrigerant loop and a water flow path, the air flow path comprises an air supply duct and an air exhaust duct, and an air mixing opening capable of communicating the air supply duct with the air exhaust duct is formed between the air supply duct and the air exhaust duct; the refrigerant loop comprises a compressor, a four-way reversing valve, an exhaust coil pipe, a first one-way valve, an air supply coil pipe, a throttling device and an air inlet coil pipe which are connected in sequence; and a water coil pipe is arranged in front of an air inlet coil pipe of the air supply duct, outdoor inlet air is primarily cooled and dehumidified through the water coil pipe in the dehumidification mode, and fresh air is heated through the water coil pipe in the heating mode. Compared with the prior art, the water coil pipe is used for pre-cooling and dehumidifying the fresh air, so that the load is reduced, and the energy efficiency is improved (or the fresh air is preliminarily heated in the heating mode); and meanwhile, due to the fact that a complete self-sufficient refrigeration circulation flow path is arranged, independent operation can be achieved completely without depending on an external cold / hot water source.

Description

technical field [0001] The invention relates to a fresh air dehumidifier and a control method thereof, in particular to an integral fresh air dehumidifier with a pre-cooling water pan and a control method thereof. Background technique [0002] Heat pump exhaust air heat recovery technology uses indoor exhaust air to condense or evaporate the refrigerant in the heat exchanger, thereby completing the recovery of energy in the exhaust air, which has become one of the important means of energy saving in modern buildings. The heat pump heat recovery type fresh air dehumidifier adopting this technology can not only avoid the cross-contamination of the supply and exhaust air caused by the traditional exhaust air heat recovery method (that is, sensible heat or total heat exchanger), but also can largely or even completely bear the indoor humidity load, realizing The integration of purification and dehumidification. [0003] Traditional air-conditioning equipment (such as central ai...

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Problems solved by technology

[0005] The object of the present invention is to provide an integral fresh air dehumidifier with a pre-cooling water tray and its control method in order to overcome the above-mentioned defects in the prior art. The integral structural design of the pre-cooling water tray solves the problems that traditional air-conditioning equipment cannot control temperature and humidity at the same time and there is over-cooling

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